Posted by several years... on April 05, 2003 at 22:53:42:
In Reply to: Cost of 5th valve?? posted by Mr F. Ithvalve on April 05, 2003 at 21:13:24:
...ago I was quoted a price of "around $1000" to add a fifth valve to a Hirsbrunner HB-1P. I never got around to having it done before I sold the horn.